EXTRA-TROPICAL  STORM  SURGE
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hat-on
mhhw-on
msl-on
mllw-on
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Alaska
Gulf of Alaska
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Elfin Cove, AK
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Nikiski, AK
Anchorage, AK
Kodiak Island, AK
Alitak, AK
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Atka, AK
Unalaska, AK
Surge List
Gulf of Alaska
#Nikiski, AK : 04/21/2025 21:21:30 GMT (units in feet MLLW)
#Date(GMT), Surge,   Tide,    Obs,   Fcst,   Anom, Comment
#------------------------------------------------------------
04/20 06Z,  -0.40,  14.94,  15.15,  99.90,   0.61,
04/20 07Z,  -0.40,  15.66,  15.49,  99.90,   0.23,  (max)
04/20 08Z,  -0.40,  15.13,  14.65,  99.90,  -0.08,
04/20 09Z,  -0.40,  13.45,  13.03,  99.90,  -0.02,
04/20 10Z,  -0.40,  11.46,  11.19,  99.90,   0.13,
04/20 11Z,  -0.40,   9.99,   9.63,  99.90,   0.04,
04/20 12Z,  -0.40,   9.26,   8.82,  99.90,  -0.04,  (min)
04/20 13Z,  -0.40,   9.33,   9.14,  99.90,   0.21,
04/20 14Z,  -0.40,  10.63,  10.50,  99.90,   0.27,
04/20 15Z,  -0.40,  12.95,  12.10,  99.90,  -0.45,
04/20 16Z,  -0.50,  14.94,  13.66,  99.90,  -0.78,
04/20 17Z,  -0.50,  15.77,  14.82,  99.90,  -0.45,
04/20 18Z,  -0.50,  15.76,  15.21,  99.90,  -0.05,  (max)
04/20 19Z,  -0.50,  15.16,  14.46,  99.90,  -0.20,
04/20 20Z,  -0.60,  13.71,  12.74,  99.90,  -0.37,
04/20 21Z,  -0.60,  11.36,  10.51,  99.90,  -0.25,
04/20 22Z,  -0.60,   8.63,   8.00,  99.90,  -0.03,
04/20 23Z,  -0.60,   6.30,   5.52,  99.90,  -0.18,
04/21 00Z,  -0.60,   4.67,   3.47,  99.90,  -0.60,
04/21 01Z,  -0.60,   3.67,   2.42,  99.90,  -0.65,  (min)
04/21 02Z,  -0.60,   3.77,   3.05,  99.90,  -0.12,
04/21 03Z,  -0.60,   5.50,   5.17,  99.90,   0.27,
04/21 04Z,  -0.60,   8.18,   7.84,  99.90,   0.26,
04/21 05Z,  -0.60,  10.68,  10.59,  99.90,   0.51,
04/21 06Z,  -0.60,  12.81,  13.03,  99.90,   0.82,
04/21 07Z,  -0.60,  14.65,  14.79,  99.90,   0.74,
04/21 08Z,  -0.60,  15.70,  15.64,  99.90,   0.54,  (max)
04/21 09Z,  -0.60,  15.42,  15.29,  99.90,   0.47,
04/21 10Z,  -0.60,  13.98,  14.01,  99.90,   0.63,
04/21 11Z,  -0.60,  12.15,  12.29,  99.90,   0.74,
04/21 12Z,  -0.50,  10.62,  10.68,  99.90,   0.56,
04/21 13Z,  -0.50,   9.50,   9.51,  99.90,   0.51,
04/21 14Z,  -0.50,   9.01,   9.10,  99.90,   0.59,  (min)
04/21 15Z,  -0.50,   9.81,   9.72,  99.90,   0.41,
04/21 16Z,  -0.50,  11.70,  10.94,  99.90,  -0.26,
04/21 17Z,  -0.50,  13.47,  12.33,  99.90,  -0.64,
04/21 18Z,  -0.50,  14.51,  13.61,  99.90,  -0.40,
04/21 19Z,  -0.50,  15.07,  14.31,  99.90,  -0.26,  (max)
04/21 20Z,  -0.50,  15.10,  14.25,  99.90,  -0.35,
04/21 21Z,  -0.50,  14.14,  13.20,  99.90,  -0.44,
#------------------------------------------------------------
#Date(GMT), Surge,   Tide,    Obs,   Fcst,   Anom, Comment
#------------------------------------------------------------
04/21 22Z,  -0.50,  12.13,  99.90,  11.23,  -0.39,
04/21 23Z,  -0.50,   9.59,  99.90,   8.74,  -0.34,
04/22 00Z,  -0.40,   7.23,  99.90,   6.53,  -0.29,
04/22 01Z,  -0.40,   5.26,  99.90,   4.62,  -0.25,
04/22 02Z,  -0.40,   3.75,  99.90,   3.15,  -0.20,
04/22 03Z,  -0.40,   3.44,  99.90,   2.90,  -0.15,  (min)
04/22 04Z,  -0.40,   4.97,  99.90,   4.47,  -0.10,
04/22 05Z,  -0.40,   7.59,  99.90,   7.14,  -0.05,
04/22 06Z,  -0.40,  10.30,  99.90,   9.90,  -0.00,
04/22 07Z,  -0.40,  12.89,  99.90,  12.54,   0.05,
04/22 08Z,  -0.30,  15.21,  99.90,  15.00,   0.10,
04/22 09Z,  -0.30,  16.51,  99.90,  16.35,   0.15,  (max)
04/22 10Z,  -0.30,  16.26,  99.90,  16.10,   0.15,
04/22 11Z,  -0.40,  14.68,  99.90,  14.43,   0.15,
04/22 12Z,  -0.40,  12.58,  99.90,  12.32,   0.15,
04/22 13Z,  -0.30,  10.55,  99.90,  10.39,   0.15,
04/22 14Z,  -0.30,   8.72,  99.90,   8.56,   0.15,
04/22 15Z,  -0.30,   7.61,  99.90,   7.46,   0.15,  (min)
04/22 16Z,  -0.30,   8.10,  99.90,   7.95,   0.15,
04/22 17Z,  -0.40,   9.99,  99.90,   9.74,   0.15,
04/22 18Z,  -0.40,  12.09,  99.90,  11.84,   0.15,
04/22 19Z,  -0.40,  13.83,  99.90,  13.58,   0.15,
04/22 20Z,  -0.40,  15.24,  99.90,  14.98,   0.15,
04/22 21Z,  -0.40,  15.91,  99.90,  15.65,   0.15,  (max)
04/22 22Z,  -0.40,  15.26,  99.90,  15.01,   0.15,
04/22 23Z,  -0.40,  13.26,  99.90,  13.01,   0.15,
04/23 00Z,  -0.40,  10.52,  99.90,  10.27,   0.15,
04/23 01Z,  -0.50,   7.75,  99.90,   7.40,   0.15,
04/23 02Z,  -0.50,   5.19,  99.90,   4.83,   0.15,
04/23 03Z,  -0.50,   3.14,  99.90,   2.79,   0.15,
04/23 04Z,  -0.50,   2.67,  99.90,   2.31,   0.15,  (min)
04/23 05Z,  -0.60,   4.37,  99.90,   3.92,   0.15,
04/23 06Z,  -0.60,   7.40,  99.90,   6.95,   0.15,
04/23 07Z,  -0.60,  10.71,  99.90,  10.26,   0.15,
04/23 08Z,  -0.60,  13.95,  99.90,  13.50,   0.15,
04/23 09Z,  -0.60,  16.65,  99.90,  16.19,   0.15,
04/23 10Z,  -0.60,  17.91,  99.90,  17.45,   0.15,  (max)
04/23 11Z,  -0.60,  17.27,  99.90,  16.82,   0.15,
04/23 12Z,  -0.60,  15.12,  99.90,  14.67,   0.15,
04/23 13Z,  -0.60,  12.32,  99.90,  11.87,   0.15,
04/23 14Z,  -0.60,   9.48,  99.90,   9.03,   0.15,
04/23 15Z,  -0.60,   6.86,  99.90,   6.41,   0.15,
04/23 16Z,  -0.60,   5.33,  99.90,   4.87,   0.15,  (min)
04/23 17Z,  -0.60,   5.92,  99.90,   5.47,   0.15,
04/23 18Z,  -0.70,   8.31,  99.90,   7.76,   0.15,
04/23 19Z,  -0.70,  11.21,  99.90,  10.66,   0.15,
04/23 20Z,  -0.70,  13.96,  99.90,  13.41,   0.15,
04/23 21Z,  -0.70,  16.25,  99.90,  15.70,   0.15,
04/23 22Z,  -0.70,  17.36,  99.90,  16.81,   0.15,  (max)
04/23 23Z,  -0.70,  16.68,  99.90,  16.13,   0.15,
04/24 00Z,  -0.70,  14.33,  99.90,  13.77,   0.15,
04/24 01Z,  -0.60,  11.06,  99.90,  10.61,   0.15,
04/24 02Z,  -0.60,   7.66,  99.90,   7.21,   0.15,
04/24 03Z,  -0.60,   4.47,  99.90,   4.02,   0.15,
04/24 04Z,  -0.60,   2.11,  99.90,   1.66,   0.15,
04/24 05Z,  -0.60,   1.87,  99.90,   1.41,   0.15,  (min)
04/24 06Z,  -0.60,   4.21,  99.90,   3.76,   0.15,
04/24 07Z,  -0.50,   8.03,  99.90,   7.68,   0.15,
04/24 08Z,  -0.50,  12.14,  99.90,  11.78,   0.15,
04/24 09Z,  -0.50,  15.96,  99.90,  15.60,   0.15,
04/24 10Z,  -0.40,  18.71,  99.90,  18.45,   0.15,
04/24 11Z,  -0.40,  19.48,  99.90,  19.22,   0.15,  (max)
04/24 12Z,  -0.40,  18.01,  99.90,  17.75,   0.15,
04/24 13Z,  -0.40,  14.91,  99.90,  14.65,   0.15,
04/24 14Z,  -0.40,  11.17,  99.90,  10.91,   0.15,
04/24 15Z,  -0.40,   7.42,  99.90,   7.17,   0.15,
04/24 16Z,  -0.40,   4.16,  99.90,   3.91,   0.15,
04/24 17Z,  -0.40,   2.59,  99.90,   2.33,   0.15,  (min)
04/24 18Z,  -0.40,   3.76,  99.90,   3.50,   0.15,
04/24 19Z,  -0.40,   7.09,  99.90,   6.83,   0.15,
04/24 20Z,  -0.40,  11.10,  99.90,  10.85,   0.15,
04/24 21Z,  -0.50,  14.92,  99.90,  14.56,   0.15,
04/24 22Z,  -0.40,  17.87,  99.90,  17.62,   0.15,
04/24 23Z,  -0.40,  19.06,  99.90,  18.81,   0.15,  (max)
04/25 00Z,  -0.40,  17.97,  99.90,  17.72,   0.15,
04/25 01Z,  -0.40,  14.97,  99.90,  14.71,   0.15,
04/25 02Z,  -0.40,  11.02,  99.90,  10.77,   0.15,
04/25 03Z,  -0.40,   7.00,  99.90,   6.74,   0.15,
04/25 04Z,  -0.40,   3.37,  99.90,   3.11,   0.15,
04/25 05Z,  -0.40,   1.06,  99.90,   0.81,   0.15,  (min)
04/25 06Z,  -0.50,   1.50,  99.90,   1.15,   0.15,
04/25 07Z,  -0.50,   4.85,  99.90,   4.49,   0.15,
04/25 08Z,  -0.40,   9.64,  99.90,   9.39,   0.15,
04/25 09Z,  -0.40,  14.49,  99.90,  14.23,   0.15,
04/25 10Z,  -0.40,  18.55,  99.90,  18.30,   0.15,
04/25 11Z,  -0.40,  20.89,  99.90,  20.64,   0.15,  (max)
04/25 12Z,  -0.30,  20.72,  99.90,  20.57,   0.15,
04/25 13Z,  99.90,  18.08,  99.90,  99.90,   0.15,
04/25 14Z,  99.90,  13.87,  99.90,  99.90,   0.15,
04/25 15Z,  99.90,   9.16,  99.90,  99.90,   0.15,
04/25 16Z,  99.90,   4.66,  99.90,  99.90,   0.15,
04/25 17Z,  99.90,   1.09,  99.90,  99.90,   0.15,
04/25 18Z,  99.90,  -0.08,  99.90,  99.90,   0.15,